Latest news with #oceanpower
Yahoo
18-05-2025
- Science
- Yahoo
Germany's underwater energy vaults could be the world's next power storage giant
What if the key to storing solar power isn't on rooftops or in batteries—but hidden deep beneath the waves? That's exactly what researchers at Germany's Fraunhofer Institute are exploring, with plans underway to submerge massive concrete spheres in the ocean, offering a sea-based alternative to land-hungry energy storage solutions. As part of the StEnSea (Stored Energy in the Sea) project, the renowned institute has been investigating how deep-sea pressure can be harnessed to store energy in the short to medium term. Since 2011, the team has focused on deploying giant hollow concrete spheres sunk hundreds of feet beneath the ocean surface to test the waters on this new frontier, according to a report on New Atlas. An empty sphere functions as a fully charged storage unit. When its valve opens, seawater flows inside, driving a turbine connected to a generator that feeds electricity into the grid. To recharge, water is pumped back out against the surrounding pressure using energy from the grid. The institute has conducted successful tests in Europe's Lake Constance. FraunhoferEach sphere measures about 30 feet (9 meters) in diameter, weighs 400 tons, and is anchored at depths between 1,970 and 2,625 feet (600–800 meters) for optimal efficiency. After successful testing of a smaller model in Europe's Lake Constance near the Rhine River, Fraunhofer plans to deploy a full-scale 3D-printed prototype off the coast of Long Beach, California, by the end of 2026, under a $4 million US Department of Energy project. This unit is expected to generate 0.5 megawatts and store 0.4 megawatt-hours—enough to power an average U.S. household for around two weeks. The institute has set an ambitious goal to further scale this technology to handle much larger spheres, approaching 100 feet (30 meters) in diameter. Fraunhofer researchers estimate that the StEnSea system could offer a colossal global energy storage capacity of about 817,000 gigawatt-hours, enough to power nearly 75 million homes across Germany, France, and the UK for an entire year. The institute projects storage costs at roughly 5.1 cents (4.6 euro cents) per kilowatt-hour, with initial investment costs near $177 (158 euros) per kilowatt-hour of capacity. These estimates are based on a model storage park featuring six spheres, delivering a combined power output of 30 megawatts and a total storage capacity of 120 megawatt-hours. The institute plans to deploy a full-scale 3D-printed prototype off the coast of Long Beach, California, by the end of 2026. Fraunhofer According to Fraunhofer, StEnSea's spherical storage is particularly well-suited for stabilizing power grids by providing frequency regulation and operating reserves. It also supports arbitrage — the process of purchasing electricity when prices are low and selling it when prices peak, a strategy commonly used by grid operators, utility companies, and energy traders. In the long run, StEnSea could compete with traditional pumped hydro storage as a means to store excess grid electricity, with no use of valuable land area playing to its advantage. Unlike pumped storage, which depends on having two reservoirs at different elevations to move water through turbines, StEnSea's underwater spheres can be deployed in multiple locations around the globe, enabling vast storage potential. While pumped storage remains cheaper to operate and slightly more efficient over a full cycle, StEnSea's flexibility and scale could make it a vital component of future energy grids.
Geeky Gadgets
12-05-2025
- Science
- Geeky Gadgets
The Untapped Power of Waves: Could Ocean Energy Outshine Solar and Wind?
What if the key to solving the renewable energy puzzle has been quietly rolling beneath the surface all along? While solar panels and wind turbines dominate the conversation, the vast, untapped power of the ocean remains largely overlooked. Yet, with the potential to generate an estimated 770 terawatt-hours of electricity annually along U.S. coastlines alone, wave energy could power tens of millions of homes. Unlike solar and wind, which ebb and flow with the weather, waves offer a steady, year-round energy source—a fantastic option for stabilizing renewable energy grids. The question is no longer whether wave energy can compete but whether it might one day surpass its more established counterparts. This overview Matt Ferrell explores the emerging potential of wave energy and the technological breakthroughs driving its progress. From AI-enhanced systems that optimize energy capture to innovative buoy designs that harness the full force of ocean waves, the field is advancing rapidly. But challenges remain: environmental concerns, high initial costs, and the harsh realities of marine environments. Could Ocean energy finally overcome these hurdles and rise to the forefront of the renewable energy revolution? The answer may reshape how we think about the future of sustainable power. The Rise of Wave Energy Why Wave Energy Holds Untapped Potential The oceans represent an immense, largely untapped source of renewable energy. Along U.S. coastlines alone, wave energy converters (WECs) have the potential to generate an estimated 770 terawatt-hours (TWh) of electricity annually—enough to power approximately 71 million homes. This vast energy reserve highlights the scale of opportunity that wave energy presents. Unlike solar and wind energy, which are inherently intermittent due to weather and time-of-day dependencies, wave energy offers a more consistent and predictable power supply. This reliability becomes particularly valuable during winter months when solar energy production is at its lowest. By complementing solar and wind, wave energy could help stabilize renewable energy grids and reduce reliance on fossil fuels during periods of low solar and wind output. Technological Innovations Driving Progress Recent technological advancements are accelerating the path toward commercial viability for wave energy. Companies like CorPower Ocean are pioneering innovative solutions to maximize energy capture and efficiency. One of their key developments is an advanced buoy system that employs a 'point absorber' design. This technology harnesses energy from both the crests and troughs of waves, significantly enhancing energy output. Additionally, the integration of WaveSpring resonance technology allows the buoy's motion to synchronize with incoming waves, further optimizing energy capture. Artificial intelligence (AI) is also playing a fantastic role in wave energy systems. AI-driven control systems enable real-time adjustments to maximize energy production while safeguarding equipment during extreme weather conditions. These systems enhance both efficiency and durability, addressing two critical challenges in wave energy deployment. Another notable innovation is the use of mobile factories for on-site buoy production. By manufacturing buoys closer to deployment sites, companies can reduce transportation costs, lower carbon footprints, and streamline the production process. These advancements collectively make wave energy more scalable and economically viable. Waves vs Solar vs Wind Power Watch this video on YouTube. Unlock more potential in new technology by reading previous articles we have written. Economic Viability: The Path to Cost Parity Achieving cost parity with solar and wind energy is a crucial milestone for wave energy to gain widespread adoption. Experts suggest that deploying approximately 2,000 buoys could significantly reduce costs through economies of scale. Additionally, co-locating wave farms with offshore wind farms presents a practical solution to lower expenses. By sharing infrastructure such as subsea cables, maintenance vessels, and grid connections, wave energy projects can reduce operational costs and improve overall efficiency. These synergies not only make wave energy more competitive but also accelerate its integration into the renewable energy mix. As costs continue to decline, wave energy could become a viable option for countries seeking to diversify their renewable energy portfolios. Addressing Environmental Concerns While wave energy holds immense promise, it also faces scrutiny over potential environmental impacts. Concerns include underwater noise, electromagnetic fields, and disruptions to marine ecosystems. These issues have prompted companies like CorPower Ocean to adopt proactive measures aimed at minimizing ecological footprints. For instance, quieter installation methods are being developed to reduce noise pollution during the deployment of wave energy systems. Advanced environmental monitoring systems are also being implemented to assess and mitigate potential impacts on marine life. By addressing these concerns, the wave energy sector aims to align with global sustainability goals and ensure that its growth does not come at the expense of marine ecosystems. Global Momentum in Wave Energy The global ocean energy sector is gaining momentum, with Europe leading the charge. Countries such as Portugal, Scotland, and Ireland have established themselves as pioneers in wave energy development, supported by robust funding and operational test sites. Pilot projects in these regions are demonstrating the feasibility of commercial wave farms and setting the stage for broader adoption. In the United States and Australia, wave energy is still in its early stages. However, recent legislative initiatives and increased funding indicate growing interest in this renewable resource. For example, the U.S. Department of Energy has launched programs to support wave energy research and development, aiming to bridge the gap with European leaders. These efforts signal a shift toward greater global collaboration in advancing wave energy technologies. The Road Ahead The future of wave energy is filled with potential, but significant challenges remain. CorPower Ocean's plans to deploy its first commercial wave farm in Ireland by 2026, with ambitions to scale to 30 megawatts (MW) by 2028, highlight the sector's progress. However, overcoming barriers such as high upfront costs, technological refinement, and environmental concerns will be critical to achieving widespread adoption. If these challenges are addressed, wave energy could become a reliable and cost-effective addition to the global renewable energy mix. By complementing solar and wind, it has the potential to play a pivotal role in the transition to a sustainable energy future. As the world continues to seek innovative solutions to combat climate change, wave energy stands as a promising contender in the quest for clean, renewable power. Media Credit: Undecided with Matt Ferrell Filed Under: Technology News, Top News Latest Geeky Gadgets Deals Disclosure: Some of our articles include affiliate links. If you buy something through one of these links, Geeky Gadgets may earn an affiliate commission. Learn about our Disclosure Policy.
